ND&M - Detectors

ND&M Neutron Handmonitor

This hand-held device is intended for visualizing neutron beams. It can be used to adjust neutron experiments, to allign samples, to find leaks in shieldings and for many other purposes.
The main constituents of the device are a neutron scintillator, a proximity focused image intensifier and battery powered high voltage supply, all incorporated in a handy housing for ease of use.
The Handmonitor allows you to view even weak beams (down to only a few neutrons/cm²/sec) under daylight conditions, since every detected neutron (detection efficiency approx. 20% at thermal wavelengths) produces a clearly visible light spot. By changing the scintillator, one can cover the whole range of neutron energies from UCNs up to thermal neutrons.

The standard active diameter is 25 mm. Other versions with a larger active area are available on request.
(50 mm version with fiber optic taper and 25 mm dia intensifier, 40 mm version with 40 mm intensifier, 80 mm version with fiber optic taper and 40 mm intensifier).

ND&M Readout Unit

The ND&M Readout Unit allows you to view your ND&M Neutron Handmonitor from remote by means of a built-in CCD camera. This device together with the ND&M Accumulating Framegrabber or the ND&M Real-time Centroiding Processor turns your Handmonitor into a position sensitive detector with outstanding properties. If it is used without ND&M Accumulating Framegrabber or ND&M Real-time Centroiding Processor, you can view the screen of your Handmonitor by simply connecting any video monitor (European video standard). Metric and UNC type threads allow easy mounting to tripods or other mechanical supports. For standalone operation an additional 12V supply is required. The ND&M Readout Unit is delivered in a shock-resistant Aluminum case for protecting your equipment during transportation.